Walking stick



FIG. 1 is a perspective view of a walking stick showing my new design;

FIG. 2 is a front elevation view of the walking stick;

FIG. 3 is a right side elevation view of the walking stick;

FIG. 4 is a left side elevation view of the walking stick;

FIG. 5 is a top plan view of the walking stick; and,

FIG. 6 is a bottom plan view of the walking stick.

The broken line showing of a key and card within the handle compartment is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a walking stick, as shown and described. 